With increasing number of reports and studies of unusual root canal morphology, It is of utmost importance that the clinician must have detailed knowledge of the pulp canal anatomy to achieve effectively proper cleaning and shaping of the root canal system. Failure to recognize the aberrant root canal anatomy will lead to an unsuccessful treatment and thus failure of the endodontic therapy.
This case report describes a very rare scenario of a mandibular right first molar with five root canals (three in distal root and two in mesial root) and a maxillary left second molar with also five root canals (three in the mesial buccal root, one in the distobuccal root, and one palatal) in the same patient.